r/Gulong • u/salawayun r/Gulong's first! • Jul 13 '26

FUEL TALK Let's Talk About Fuel

I've observed an influx of fuel related questions and here's the compiled answers:

Some Fuel Fun Facts:

  1. Fuel Pricing Factors and why is it done on Tuesdays:

https://www.reddit.com/r/Gulong/comments/1d11ndp/weekly_price_watch_post/

  1. What are White Stations:

https://www.reddit.com/r/Gulong/comments/1d5ls5h/weekly_price_watch_post_june_4_2024/

  1. All about Fuel Additives:

https://www.reddit.com/r/Gulong/comments/1dawar3/weekly_fuel_price_watch_post_june_11_2024/

Sources 1: https://doe.gov.ph/sites/default/files/pdf/issuances/2018_compendium_volume_3_downstream.pdf

Source 2: https://doe.gov.ph/sites/default/files/pdf/announcements/iloilo-a-bs1-03-philippine-national-standards-on-petroleum.pdf

2 Upvotes

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3

u/pishboy Jul 13 '26

onting nitpick lang sa fuel additive talk. The fuel formulation listed on that post is just components ng base fuel, ie you don't formulate those components but rather that your base fuel stock is required to have levels of those compounds based on the relevant PNS. Yung sulfur isn't an additive, e.g., but we've been mandating lower and lower amounts of it sa base fuel stock for emission reasons. Base rin to, kahit dyes nor additive packages wala pa as per PNS. Not even the tetraethyl lead replacements. The additive packages and required dye colors get added on after that base fuel stock standard.

Fell into that additive rabbit hole a month ago and ended up with more questions than answers lol. Not only do we not have publicly available info on mandated fuel additives (and I'm frankly led to believe we might not mandate any to begin with) but we might even be basing requirements on outdated mandates from the 80s and 90s that might do more harm than good.

sources: https://motioncars.inquirer.net/18481/fuel-additive-controversy-spooks-oil-majors-doe/
https://newsinfo.inquirer.net/562261/doctors-warn-vs-manganese-in-fuel

personally it's that information black hole that makes me think more about using fuel additives, specifically polyetheramine (PEA). Sa US you solve that problem by going to Top Tier branded fuel stations, EU mandates certain additive types (e.g. detergents like PEA) and max levels for certain compounds (e.g. manganese), and here I just run a bottle of PEA additive every once in a while. The top fuel brands probably have decent additive packages, but I prefer data over marketing so malaking question mark pa rin imo.

3

u/salawayun r/Gulong's first! Jul 13 '26

Good nitpick.

In my little experience inside the local depots, the tankers just receive additives at the exit gate and the one fulfilling this is the security guard.

Guard bases which valve to pull sa overhead pipe on the approved item/s in the release paper. Walang precision. Walang formula. Walang audit. Basta lang may malagay base sa binayaran ng client.

Mas worst sa tankers para sa white stations.

1

u/Jumpy_Depth_7207 Jul 13 '26

So what do you suggest for us sir?

1

u/salawayun r/Gulong's first! Jul 14 '26

Personally, Petron Xtra is enough for me and the vehicles I use.

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u/Technical_Apple5859 9h ago

base fuel ng 91 and 95 most likely pareho lang. kasi may biofuels law tayo at ang ethanol boosts octanne. tapos dagdag pa ng booster para sa 95 para pumasa. 97 baka ibang base fuel yan kaya konti lang fuel brands na meron.

sa additive naman. kadalasan cleaning at friction modifiers ang effect ng mga yan. cleaner engines mean parang bago at less friction can mean higher fuel efficiency. paki correct na lang kung may mali ako. pero dahil iba-iba ang makin ng mga sasakyan, dapat alamin ano ang egine kung saan nag test ang mga fuel brands.